Micromechanics of diffusional creep in polycrystals
Conference
·
OSTI ID:175408
- Wayne State Univ., Detroit, MI (United States)
- Reliance Electric, Cleveland, OH (United States)
- UES Inc., Dayton, OH (United States)
The theory of diffusional creep created by Nabarro, Herring, Coble and Lifshitz: is reexamined and extended to the nonlinear case in order to take into account such nonlinear phenomena as grain rotations, and grain boundary motion. The system of equations obtained allows one to analyze {open_quotes}on the microscopic level{close_quotes} void formation, superplasticity, creep of metals and ceramics at low stresses and high temperatures. Numerical solutions have been obtained which show microscopic and macroscopic behavior of polycrystals with periodic microstructure in a creep regime.
- OSTI ID:
- 175408
- Report Number(s):
- CONF-950686--
- Country of Publication:
- United States
- Language:
- English
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